JPH1150340A - Special spun yarn for opal processing - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a spun yarn, having a core and sheath structure having a core part comprising cellulosic fiber subjected to water repellent processing, and a sheath part comprising the cellulosic fiber without the water-repellent processing, and used for processing for forming transparent by removing either one fiber of mixed spinning or mixed weave by utilizing the difference of chemical resistance. SOLUTION: This spun yarn 3 having a two-layer structure is obtained by supplying a cellulosic fiber subjected to a water-repellent processing from the upper part of a front roller of a fine spinning frame, using the yarn subjected to the water-repellent processing as a core part 1, using the cellulosic fiber supplied from a back roller, drafted, and not subjected to the water-repellent processing, as a sheath part 2, and coiling the sheath part 2 around the core part 1 when spinning the yarn comprising the cellulosic fiber such as cotton and rayon. The mixing proportion forming the core part 1 is preferably 40-50 wt.% as a core to sheath mixing ratio.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a special spun yarn for opal processing (processing for removing a fiber of one of mixed spinning and weaving by utilizing a difference in chemical resistance to produce a watermark pattern).

[0002]

2. Description of the Related Art Conventionally, a difference in chemical resistance from opal processing is used. For example, in the case of a two-layered yarn, a polyester filament yarn is used for a core portion and cotton is used for a sheath portion. After weaving and knitting, a method of treating the printed pattern portion with a sulfuric acid compound in a printing process, dissolving the cotton, leaving only the polyester filament yarn in the core portion, and forming a watermark pattern has been adopted.

[0003] Materials such as this can be used to make cloths for women's blouses and dresses which meet the demands. Materials such as handkerchiefs which are particularly required to be highly hygroscopic and water-absorbent are required. After washing hands, even if it was used to wipe wet hands, it could not sufficiently absorb moisture, had a poor function as a handkerchief, and was just a handkerchief.

[0004]

DISCLOSURE OF THE INVENTION The present invention solves the above-mentioned problems, and is a special spinning for opal processing which is made of 100% cellulosic fiber which has been subjected to opal processing and has excellent hygroscopicity and water absorbency. It is intended to provide a yarn.

[0005]

In order to solve this problem, the present invention provides a core-sheath structure in which a core is made of a cellulose fiber subjected to a water-repellent treatment, and a sheath is subjected to a water-repellent treatment. The gist of the present invention is that it is composed of a cellulose-based fiber that has not been used. Further, the present invention is characterized in that the cellulosic fiber is cotton. Further, the present invention is characterized in that the cellulosic fiber is rayon.

Hereinafter, the present invention will be described in detail. The special spun yarn for opal processing of the present invention, when spinning a yarn made of cellulosic fiber such as cotton usually with a ring spinning machine, a yarn made of a cellulosic fiber subjected to water repellency from the upper front roller of the spinning machine. A two-layer structure in which the water-repellent yarn is supplied as a core, and a non-water-repellent cellulose fiber supplied from a back roller is used as a sheath and wound around the core. It is a spun yarn with a structure.

[0007] Such a special spun yarn achieves an initial purpose by performing opal processing in a printing process after weaving. By the way, as the yarn made of the cellulosic fiber, rayon or the like can be used in addition to cotton as described above. As the cotton, for example, it is preferable to use ultra-long fiber length cotton, since fine yarn can be spun.

[0008] A paraffin wax emulsion is used as a water repellent for water repelling the yarn made of the cellulose fiber constituting the core. Regarding the core-sheath ratio, the mixing ratio for forming the core is preferably 40 to 50% by weight, and if it is less than 40% by weight, there is a problem that slip occurs in the woven structure after opal processing, and if it is more than 50% by weight. The mixing ratio of the sheath portion of the two-layer structure yarn is reduced, and poor covering occurs.

FIG. 1 is a perspective view of a special spun yarn for processing opal according to the present invention, wherein 1 is a core portion made of water-repellent cotton, and 2 is a sheath portion made of non-water-repellent fiber. The special spun yarn 3 for opal processing has a two-layer structure of a core-sheath structure.

[0010] Conventionally known opal processing is a method in which only one fiber of a blend is removed to make a watermark pattern by utilizing a difference in chemical resistance. Although it is extremely difficult to remove only the sheath, the core made of the same material is subjected to a water-repellent treatment to impart chemical resistance and only the sheath having poor chemical resistance is removed.

[0011]

Embodiments of the present invention will be described below. Embodiment 1 First, water-repellent processing is performed on the cotton that is the core of the English cotton count 100 / − in a thread state. At this time, a paraffin wax-based emulsion is used as a water repellent, and cotton as a core is run through the paraffin wax-based emulsion dissolved by heat to attach the paraffin wax to the cotton. The cotton thus water-repellent is supplied from a front roller of a ring spinning machine, a roving is supplied from a back roller, and the fiber is drafted and covered with a fiber serving as a sheath to obtain a core / sheath (weight ratio). ) Is 50/50 and English cotton count 5
A special spun yarn having a two-layer structure of 0 /-was spun out. Using this special spun yarn, weaving into a plain weave at a density (warp × weft) of 83 × 77 yarns / inch, followed by opal processing.

The fabric is subjected to a water repellent treatment (3 boiled in an aqueous solution of sodium hydroxide having a concentration of 10 g / l while boiling).
0 minutes), and then sewed on a handkerchief.
A good handkerchief was obtained, which was slightly different in terms of moisture absorption and water absorption after hand-washing than an opal-processed handkerchief made of cotton with a sheath made of cotton.

[0013]

As described above, according to the present invention, when a special spun yarn is sewn to a handkerchief and used, for example, there is no poor hand-wiping feeling after hand-washing as in conventional opal processing, and moisture absorption and water absorption are obtained. It is possible to provide an opal-processed handkerchief that is rich in properties. It goes without saying that the special spun yarn of the present invention can be used not only as a material for handkerchiefs but also as a material for other products.

[Brief description of the drawings]

FIG. 1 is a perspective view of a special spun yarn for processing opal according to the present invention.

[Explanation of symbols]

 1 core 2 sheath 3 special spun yarn for opal processing

Claims (3)

[Claims] An opal process having a core-sheath structure, wherein a core portion is made of a water-repellent cellulose fiber, and a sheath portion is made of a non-water-repellent cellulose fiber. For special spun yarn. 2. A special spun yarn for processing opal, wherein the cellulosic fiber is cotton. 3. A special spun yarn for processing opal, wherein the cellulosic fiber is rayon.